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Cornerstone · Grades 3–5 Keystones #1 17 April 2018 Skills week 1 of 7
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Keystones — Cornerstone

Five GCSE retrieval questions · 17 April 2018 · mathsvault.uk/keystones

  1. 1. Number Adding fractions

    Add: 3⁄8 + 3⁄6

    Answer: 7⁄8
  2. 2. Algebra Two-step equations

    Solve: 3x + 5 = 29

    Answer: x = 8
  3. 3. Geometry Pythagoras — hypotenuse

    Find the hypotenuse of a right triangle with sides 12cm and 35cm

    Answer: 37cm
  4. 4. Ratio Sharing in a ratio

    Share 84 in the ratio 4:3

    Answer: 48 and 36
  5. 5. Statistics Mean

    Calculate the mean of: 7, 20, 30, 14, 9, 43, 48, 10

    Answer: 22.6

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